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F5 Networks Compatible 40GBASE-SR4 QSFP+ 40G 850nm 100m DOM MTP/MPO-12 UPC MMF Transceiver Module
F5 Networks Compatible 40GBASE-SR4 QSFP+ 40G 850nm 100m DOM MTP/MPO-12 UPC MMF Transceiver Module
F5 Networks Compatible 40GBASE-SR4 QSFP+ 40G 850nm 100m DOM MTP/MPO-12 UPC MMF Transceiver Module
P/N: QSFP-40G-SR4
US$23.00
6
Reviews
6
Questions
safeguard
4-Year Warranty
30-Day Returns
30-Day Exchange
（1000 In Stock）

Product Highlights

Max Power Consumption < 1.5W
Complies with Class 1 FDA Laser Safety Standards
Supports Digital Diagnostic Monitoring Functionality
Compliant with Hot Pluggable QSFP+ MSA, IEEE802.3ba Standard
Compliant with RoHS Environmental Protection Standards (Lead-Free)
Provide Compatibility Test Reports for Multiple Brand Switches
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Specifications
Q&A
Reviews
Resources
F5 Networks Compatible 40GBASE-SR4 QSFP+ 40G 850nm 100m DOM MTP/MPO-12 UPC MMF Transceiver Module
The 40G-QSFP-SR4 transceiver is a high-performance, parallel 40Gb/s QSFP+ optical module designed for high-speed data transmission. It integrates four independent transmitters and receivers, utilizing a four-channel 850nm VCSEL array, PIN array, amplifier, and driver to achieve compact size, low power consumption, and cost efficiency. Each channel supports data rates of up to 10Gbps, enabling transmission distances of up to 100 meters over OM3 multimode fiber. This makes the module ideal for high-density, short-range applications such as data center interconnects and high-performance computing.
Specifications
Form Factor
QSFP+
Max Data Rate
41.2Gbps
Wavelength
850nm
Max Cable Distance
100m@OM3, 150m@OM4
Media
MMF
Connector
MTP/MPO-12 UPC
Transmitter Type
VCSEL
Receiver Type
PIN
TX Power
-7.1~1.9dBm
Receiver Sensitivity
<-10.3dBm
Electrical Modulation
4x10.3125Gb/s NRZ
Optical Modulation
4x10.3125Gb/s NRZ
Temperature Range
0 to 70°C (32 to 158°F)
Operating Relative Humidity
5%～95%
Host FEC
Supported
DDM/DOM
Supported
Protocols
IEEE 802.3ba, QSFP+ MSA, SFF-8436, SFF-8636
Main application environments
40G Ethernet, Breakout to 10GBASE-SR Ethernet, Proprietary interconnections
Certification
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Questions & Answers
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All (6) Application (1)Product (1)Compatibility (2)Installation (1)Performance (1)
Q:

What fiber connectors are supported?

by p***m on 2025-07-21 11:32:18

A:

We support LC, MPO, and MTP connectors based on the module type.

by Helpful on 2025-07-21 11:48:37

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comment icon Comment 0
Q:

What’s the typical BER (Bit Error Rate)?

by m***m on 2025-07-21 11:13:15

A:

Typical BER is under normal operation.

by Helpful on 2025-07-21 11:50:35

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Q:

Can these transceivers auto-negotiate with older models?

by i***m on 2025-07-21 11:10:04

A:

Yes, backward compatibility is supported in many cases.

by CPLIGHT on 2025-07-21 11:48:56

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Q:

How should cables be routed in a high-density rack?

by y***m on 2025-07-21 11:04:02

A:

Use cable managers to maintain airflow and prevent bending.

by Helpful on 2025-07-21 11:49:52

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Q:

Can this cable be used for GPU interconnect?

by b***m on 2025-07-21 10:29:04

A:

Yes, especially our IB and AOC cables are ideal for GPU-to-GPU communication.

by Helpful on 2025-07-21 11:49:18

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Q:

Can I request a test report for each batch?

by I***m on 2025-07-21 10:25:23

A:

Yes, test reports can be provided for all outgoing batches.

by CPLIGHT on 2025-07-21 11:48:13

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Customer Reviews
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All (6) Compatibility (1)Ease of Use (2)Customer Support (1)Value (2)
e
e***m
2025-05-28 16:26:27
Confirmed Purchase
5.0

A cost-effective solution for large campus and edge deployments, especially when managing hundreds of switch ports.

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P
P***m
2025-05-20 07:06:20
Confirmed Purchase
5.0

No need for vendor-specific coding or configuration tools. These just worked out of the box, even in slightly older switches.

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comment icon Comment 0
v
v***m
2025-05-08 09:10:49
Confirmed Purchase
5.0

These transceivers were immediately recognized by our Dell and HPE servers with no firmware complaints. It was a simple swap from our OEM modules.

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4
4***m
2025-04-25 21:42:24
Confirmed Purchase
5.0

A fantastic value for upgrading legacy 10G to modern 25G backbones. Performance is solid and pricing is highly competitive.

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X
X***m
2025-04-24 05:50:27
Confirmed Purchase
5.0

We had a question about DOM support, and the vendor provided full documentation within hours, including screenshots and test results.

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X
X***m
2025-04-14 10:45:58
Confirmed Purchase
5.0

Installation was as simple as plug-and-play. The transceivers clicked into place securely, and link lights came up immediately.

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